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| ; RUN: llc -verify-machineinstrs -mtriple=powerpc64le-unknown-linux-gnu < %s | FileCheck %s
define signext i32 @test1(i32 signext %i, i32 (i32)* nocapture %Func, i32 (i32)* nocapture %Func2) {
entry:
; CHECK-LABEL: test1:
; CHECK: std 2, 24(1)
; CHECK-NOT: std 2, 24(1)
%call = tail call signext i32 %Func(i32 signext %i)
%call1 = tail call signext i32 %Func2(i32 signext %i)
%add2 = add nsw i32 %call1, %call
ret i32 %add2
}
define signext i32 @test2(i32 signext %i, i32 signext %j, i32 (i32)* nocapture %Func, i32 (i32)* nocapture %Func2) {
entry:
; CHECK-LABEL: test2:
; CHECK: std 2, 24(1)
; CHECK-NOT: std 2, 24(1)
%call = tail call signext i32 %Func(i32 signext %i)
%tobool = icmp eq i32 %j, 0
br i1 %tobool, label %if.end, label %if.then
if.then: ; preds = %entry
%call1 = tail call signext i32 %Func(i32 signext %i)
%add2 = add nsw i32 %call1, %call
%call3 = tail call signext i32 %Func2(i32 signext %i)
%add4 = add nsw i32 %add2, %call3
br label %if.end
if.end: ; preds = %entry, %if.then
%Sum.0 = phi i32 [ %add4, %if.then ], [ %call, %entry ]
%call5 = tail call signext i32 %Func(i32 signext %i)
%add6 = add nsw i32 %call5, %Sum.0
ret i32 %add6
}
; Check for multiple TOC saves with if then else where neither dominates the other.
define signext i32 @test3(i32 signext %i, i32 (i32)* nocapture %Func, i32 (i32)* nocapture %Func2) {
; CHECK-LABEL: test3:
; CHECK: std 2, 24(1)
; CHECK-NOT: std 2, 24(1)
entry:
%tobool = icmp eq i32 %i, 0
br i1 %tobool, label %if.else, label %if.then
if.then: ; preds = %entry
%call = tail call signext i32 %Func(i32 signext %i)
br label %if.end
if.else: ; preds = %entry
%call1 = tail call signext i32 %Func2(i32 signext 0)
br label %if.end
if.end: ; preds = %if.else, %if.then
%Sum.0 = phi i32 [ %call, %if.then ], [ %call1, %if.else ]
%call3 = tail call signext i32 %Func(i32 signext %i)
%add4 = add nsw i32 %call3, %Sum.0
ret i32 %add4
}
define signext i32 @test4(i32 signext %i, i32 (i32)* nocapture %Func, i32 (i32)* nocapture %Func2) {
; CHECK-LABEL: test4:
; CHECK: std 2, 24(1)
; CHECK-NOT: std 2, 24(1)
entry:
%call = tail call signext i32 %Func(i32 signext %i)
%tobool = icmp eq i32 %i, 0
br i1 %tobool, label %if.else, label %if.then
if.then: ; preds = %entry
%call1 = tail call signext i32 %Func(i32 signext %i)
br label %if.end
if.else: ; preds = %entry
%call3 = tail call signext i32 %Func2(i32 signext 0)
br label %if.end
if.end: ; preds = %if.else, %if.then
%call1.pn = phi i32 [ %call1, %if.then ], [ %call3, %if.else ]
%Sum.0 = add nsw i32 %call1.pn, %call
ret i32 %Sum.0
}
; Check for multiple TOC saves with if then where neither is redundant.
define signext i32 @test5(i32 signext %i, i32 (i32)* nocapture %Func, i32 (i32)* nocapture readnone %Func2) {
entry:
; CHECK-LABEL: test5:
; CHECK: std 2, 24(1)
%tobool = icmp eq i32 %i, 0
br i1 %tobool, label %if.end, label %if.then
if.then: ; preds = %entry
%call = tail call signext i32 %Func(i32 signext %i)
br label %if.end
if.end: ; preds = %entry, %if.then
%Sum.0 = phi i32 [ %call, %if.then ], [ 0, %entry ]
%call1 = tail call signext i32 %Func(i32 signext %i)
%add2 = add nsw i32 %call1, %Sum.0
ret i32 %add2
}
; Check for multiple TOC saves if there are dynamic allocations on the stack.
define signext i32 @test6(i32 signext %i, i32 (i32)* nocapture %Func, i32 (i32)* nocapture %Func2) {
entry:
; CHECK-LABEL: test6:
; CHECK: std 2, 24(1)
; CHECK: std 2, 24(1)
%conv = sext i32 %i to i64
%0 = alloca i8, i64 %conv, align 16
%1 = bitcast i8* %0 to i32*
%call = tail call signext i32 %Func(i32 signext %i)
call void @useAlloca(i32* nonnull %1, i32 signext %call)
%call1 = call signext i32 %Func2(i32 signext %i)
%add2 = add nsw i32 %call1, %call
ret i32 %add2
}
declare void @useAlloca(i32*, i32 signext)
|